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Radiant|Lab Grown|IGI

4.09ct D IF Radiant Lab Grown Diamond

EX • D/IF • IGI LG754563460

Certificate IGI LG754563460

Diamond specifications and retailer prices

From $3,521 USD
Save $12,939 USD (79%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $16,460 USD at Michael Trio
View at Michael Trio

About this 4.09ct lab-grown radiant diamond

This 4.09ct lab-grown radiant sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG754563460 or 754563460. Listed at 21 retailers, with prices from $3,521 to $16,460 at Michael Trio, a $12,939 spread on the same certified stone. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

4.09
Carat
D
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.9°
Pavilion angle32.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754563460
Dimensions7.91 × 7.91 × 11.84 mm
L/W Ratio1.00
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.91 mm7.91 mm4.09 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754563460
Side View
Table 64.0%Crown 40.9°Girdle: Slightly ThickPavilion 32.4°Culet: NoneDepth 64.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0-100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Sep 30
Current: $16,460 USD|Low: $3,831 USD|High: $17,403 USD|Avg: $8,459 USD|-2.9%
Michael Trio
Retailer 2
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Retailer 12
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Retailer 18
October 1, 2026
Retailer 16$3,831 USD
Retailer 3$3,981 USD
Retailer 8$4,028 USD
Retailer 7$4,265 USD
Retailer 2$4,659 USD
Retailer 9$5,530 USD
Retailer 18$5,683 USD
Retailer 12$6,067 USD
Retailer 15$6,915 USD
Retailer 6$6,934 USD
Retailer 4$7,179 USD
Retailer 13$9,420 USD
Retailer 14$9,773 USD
Retailer 17$11,700 USD
Retailer 10$12,057 USD
Retailer 11$14,600 USD
Retailer 5$15,968 USD
Michael Trio$16,460 USD

34 data points across 18 retailers

21 retailers$3,521 USD to $16,460 USD

A
Cheapest Retailer
-
$3,521 USD
A
Retailer 2
-
$3,831 USD
View
A
Retailer 3
-
$3,981 USD
View
A
Retailer 4
-
$4,028 USD
View
A
Retailer 5
-
$4,265 USD
View
A
Retailer 6
-
$4,659 USD
View
A
Retailer 7
-
$5,530 USD
View
A
Retailer 8
-
$5,633 USD
View
A
Retailer 9
-
$5,683 USD
HK$44,400 HKD
View
A
Retailer 10
-
$6,080 USD
£4,787 GBP
View
A
Retailer 11
-
$6,115 USD
£4,815 GBP
View
Price last confirmed 21 days ago
A
Retailer 12
-
$6,915 USD
View
A
Retailer 13
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$6,934 USD
£5,460 GBP
View
A
Retailer 14
-
$7,179 USD
€6,837 EUR
View
B+
Retailer 15
-
$9,420 USD
ZAR 152,179 ZAR
View
B+
Retailer 16
-
$9,773 USD
£7,695 GBP
View
B+
Retailer 17
-
$11,700 USD
View
B+
Retailer 18
-
$12,057 USD
View
B
Retailer 19
-
$14,600 USD
A$22,462 AUD
View
B
Retailer 20
-
$15,968 USD
View
Most Expensive
B
Michael Trio
6998602390 · Sep 29
$16,460 USD
SGD 22,243 SGD
View
20 more retailers have this diamond
Prices start from $3,521 USDSave up to $12,939 USD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing.

A
4.09ct Radiant
$3,521 USD